Tests for friction angles between wool, cashmere, Angora raaait hair, yak hair and pins of flexible clothing and teeth of MCC wire were made respectively.是什麼意思_Tests for friction angles between wool, cashmere, Angora raaait hair, yak hair and pins of flexible clothing and teeth of MCC wire were made respectively.在線翻譯_英語_讀音_用法_例句